Immune response and survival of Circulifer haematoceps to Spiroplasma citri infection requires expression of the gene hexamerin.
| hal.structure.identifier | Biologie du fruit et pathologie [BFP] | |
| dc.contributor.author | ELIAUTOUT, Rémi | |
| hal.structure.identifier | Biologie du fruit et pathologie [BFP] | |
| dc.contributor.author | DUBRANA, Marie-Pierre | |
| hal.structure.identifier | Biologie Fonctionnelle, Insectes et Interactions [BF2I] | |
| dc.contributor.author | VINCENT-MONÉGAT, Carole | |
| dc.contributor.author | VALLIER, Agnès | |
| hal.structure.identifier | Écologie, Évolution, Symbiose [Équipe du laboratoire EBI Poitiers] [EES] | |
| dc.contributor.author | BRAQUART-VARNIER, Christine | |
| hal.structure.identifier | Institut Sophia Agrobiotech [ISA] | |
| dc.contributor.author | POIRIÉ, Marylène | |
| hal.structure.identifier | Service de Dermatologie [Rennes] = Dermatology [Rennes] | |
| dc.contributor.author | SAILLARD, Colette | |
| hal.structure.identifier | Biologie Fonctionnelle, Insectes et Interactions [BF2I] | |
| dc.contributor.author | HEDDI, Abdelaziz | |
| dc.contributor.author | ARRICAU-BOUVERY, Nathalie | |
| dc.date.issued | 2015-08-13 | |
| dc.identifier.issn | 0145-305X | |
| dc.description.abstractEn | <em>Spiroplasma citri</em> is a cell wall-less bacterium that infects plants. It is transmitted by the leafhopper <em>Circulifer haematoceps</em>, which hosts this bacterium in the haemocel and insect tissues. Bacterial factors involved in spiroplasma colonization of the insect host have been identified, but the immune response of the leafhopper to <em>S. citri</em> infection remains unknown. In this study, we showed that <em>C. haematoceps</em> activates both humoral and cellular immune responses when challenged with bacteria. When infected by <em>S. citri</em>, <em>C. haematoceps</em> displayed a specific immune response, evidenced by activation of phagocytosis and upregulation of a gene encoding the protein hexamerin. S. citri infection also resulted in decreased phenoloxidase-like activity. Inhibition of hexamerin by RNA interference resulted in a significant reduction in phenoloxidase-like activity and increased mortality of infected leafhoppers. Therefore, the gene hexamerin is involved in S. citri control by interfering with insect phenoloxidase activity. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject | Immune cells | |
| dc.subject | RNAi | |
| dc.subject.en | Hemipteran innate immunity | |
| dc.subject.en | Hexamerin | |
| dc.subject.en | Phenoloxidase activity | |
| dc.title.en | Immune response and survival of Circulifer haematoceps to Spiroplasma citri infection requires expression of the gene hexamerin. | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.dci.2015.08.007 | |
| dc.subject.hal | Sciences de l'environnement/Biodiversité et Ecologie | |
| bordeaux.journal | Developmental and Comparative Immunology | |
| bordeaux.page | 7-19 | |
| bordeaux.volume | 54 | |
| bordeaux.issue | 1 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01204859 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01204859v1 | |
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